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0'. A. SAWYER. I WBPT' STOP MOTION FOR L UOMS.

Patented June 15, 1886.

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' UNITED STATES PATENT 'rrrcn.

ORREN A. SAWYER, OF LOWELL, MASSACHUSETTS, ASSIGNOR TO MOSES M.

LAHUE, OF SAME PLACE.

WEFT-STOP MOTION FOR LOOIVIS.

SPECIFICATION forming part of Letters Patent No. 343,732, dated June 15,1886.

I Application filed December 19, 1881. Serial No. 48,182. (No model.)

To all whom it may concern:

Be it known that I, ORREN A. SAWYER, of the city of Lowell, county ofMiddlesex, and State of Massachusetts, have invented a new and usefulImprovement in VVeft-Stop Motions for Looms, of which the following is aspecification.

My improvement relates to power -looms weft-stop mechanism belongingthereto, one

end of the lathe with the Weft-grating connected thereto, and theweftguide. Fig. 2

is an end view of the mechanism seen in Fig.

1, the lathe being omitted. Figs. 3 and 4 are details.

A is the breast-beam.

B is the supporting-plate or slideway in which the stop-motion-forkcarrier (3 slides.

a is the stop-motion fork, provided with tines c and shank 0 whichlatter has a hook upon its lower side above the end of the dog 1), whichis oscillated by the cam s on the shafts at each beat of the lay.

E is a lever placed horizontally on the top 5 of the breast-beam A, oneend of which engages in a notch in the fork-carrier, and the other endbears against the belt-shifting lever F when it is at rest in theretaining notch of the slotted plate f.

d is the hand-rail of the lathe. Through the usual reed, below the handrail, the warpthreads a a pass.

' b is the weft-grating.

When the hook on the shank of the fork fails to be lifted by the actionof the weft up.-

on tines 0 the dog D, catching in it, moves the carriage-O back in theslideway and operates the lever E, which pushes the beltshipping lever Fout of its retaining-notch in the slotted plate f, and permits thespring which operates the lever to throw it over and shift the beltwhich drives the loom, so as to put it onto the loose pulley, and thuspermit the loom to stop. All .these parts or their equivalents are oldandwell known, as is also the method of their operation, and furtherdescription of them or their operation is not necessary, it only beingdesired to show and describe enough of these parts to properly locatethe place of application of the threadguide, which I have combined withthe stopmotion fork.

G is the thread-guide, which consists of a wire or'light strip of metalattached to the lower part of one of the tines of the fork, and havingits upper end extended so as to be in rear of the fork and as high aswill pass through the weft-grating, such end being caused to project atsuch an angle that when the weft-thread is caught between it and thegrating it will be guided down, sliding against the thread-guide to apoint near the lower end of the fork-tines before coming into contactwith them or operating the fork in the usual manner.

Heretofore the filling thread has been caught between the fork and thegrating at whatever'point on the fork it might happen to be, and as thefork-tines pushed it against the face of the grating the fork wasoscillated and its hook lifted above the end of the dog, as beforementioned. If, however, the thread came in contact with the fork nearthe top of the tines, it was frequently broken when weaving lightfabrics, because the thread operated against the fork much nearer itspivotal point, and did not have strength to resist the great strainbrought upon it when so borne upon by the fork, while having amplestrength to operate the fork of the stop-motionwhen it came in contactwith the fork-tines near their ends. It is to prevent this kind ofaccidents that my combination is especially designed, and its operationmay be thus described.

As the lathe moves forward after each shot to beat the fillingintoplace, the thread will in all cases pass under the elevated end of theguide, and if the thread be above the level of aproper contact-point onthe fork it will as it is carried toward the fork be brought intocontact with the inclined portion of the threadguide, and by it beguided down to a plane slightly above the ends of the fork-tines beforeit is caught between the fork and the grating, and will therefore ateach beat of the lathe be always carried into the best position 5 tooperate the fork.

WVhat I claim as new and of my invention 1s- 1. In a loom, thecombination of the stopmotion fork c with the thread-guide G,monnted 0upon said fork and adapted to guide the filling against the fork-tinesnear their ends, substantially as described.

2. In a loom, the combination of the stopmotion fork c with thethread-guide G, mounted thereon, and the grating b, substantially as r 5described.

ORREN A. SAVVYER. Witnesses:

LEPINE 0. E1613, M. M. LAi-rUE.

